四川广元猕猴桃溃疡病气象条件分析

Analysis of Meteorological Conditions of Kiwifruit Ulcer Disease in Guangyuan City,Sichuan Province

利用1960—2018年四川省广元市5个地面常规气象观测站逐日气温和降水资料,采用5日滑动平均和气候倾向率方法分析了四川广元猕猴桃溃疡病发生的气象条件。结果表明:①猕猴桃溃疡病最适宜气温为2—15℃,稳定通过15℃初日为苍溪最早,在4月上旬—中旬;青川最晚,在4月下旬—5月上旬。②猕猴桃溃疡病结束临界气温为20℃,20℃初日苍溪最早,在4月下旬—5月上旬;青川最晚,在5月中旬—下旬。③青川猕猴桃溃疡病发病概率最大、时间最长,而苍溪猕猴桃溃疡病发病概率最小、时间最短。

By the daily temperature and precipitation data from 1960 to 2018 of five ground-based conventional meteorological observatories,the meteorological conditions of kiwifruit ulceration occurrence were analyzed by use of the five-day moving average and climatic tendency rate method in Guangyuan City,Sichuan Province.The results showed that:①The most suitable temperature for kiwifruit canker disease were 2—15℃,the beginning time of 15℃was the earliest in Cangxi County,mainly in early to mid-April.It was the latest in Qingchuan County,mainly in late April to early May.②The end temperature of kiwi canker disease was 20℃,and it was the earliest in Cangxi County,mainly in late April to early May.It was the latest in Qingchuan County,mainly in mid-May to late.③Kiwifruit ulcer disease had the highest probability and the longest time in Qingchuan County.The probability of incidence of kiwifruit ulcer disease was the smallest and the time was the shortest in Cangxi County.